Fire-extinguisher



(No Model.)

1). PARHAM.

, FIRE EXTINGUISHER.

No. 266,876. Patented Oct. 31', 18 2.

WITNESSES: J 8, W 9

\ MM PM I jm My ATTORNEYS.

N. PETERS. PhuXo-Lxlhngmpher. Washlnglml. n. c.

UNITED STATES PATENT @FFICE.

DANlEL PARHAM, OF TYNGSBOROUGH, MASSACHUSETTS.

FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 266,876,0lated October31, 1882.

Application filed April 8, 1882.

(No model.)

To all whom at may concern Be it known that I, DANIEL PARHAM, ot'Tyngsborough, in the county of Middlesex and State of Massachusetts,have invented a new and Improved Fire-Extinguisher, of which thefollowing is a t'ull,elear, and exactdescription.

This invention consists in a certain combination and arrangement ofdevices, whereby the severing of a cord or cords by fire operates tosound an alarm and to turn on water for ex tinguishing the fire.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is an elevation of the improvement, showing an arrangement offire extinguishing and alarm apparatus in accordance with my inventionwhen water is to be used. Fig. 2 is an elevation of a stand-sprinkler,with apparatus for opening the cooks, as arranged in an elevated shaftor stairway. Fig. 3 is a sectional elevation of contrivances for openinga valve in the end of a horizontal sprinkler, and Fig. 4 is an elevationof apparatus for the openingot' a gate in the water-pipe by the fall ofa weight upon it when the cord burns otl'. Fig. 5 is a detail ot'Fig. 1.

In Fig. l, A is a water-supply pipe located in the room to be protectedaccording to the circumstances of the case, and having a sprinklerattachment, B, extended about the room as required, and a cock, 0,shutting off the water from the sprinkler. The cock is provided with alever, D, which stands in the elevated position represented in thedrawings when the cock is shut, and has a weight, E, connected to itsupper end by a chain, F, said weight being suspended by its hook G fromthe yoke H of a bar, I, held up at each end by the combustible cord J,traversing the building wherever desired through staples or eyestuds K,and to be exposed in the places where it is most likely to be burned inthe beginning of the fire, to let the weight fall and open the cock bypulling lever D down to the position represented by the dotted lines.Lever D is also provided with a hook, I, holding up a drop-shelf, J, bya cord, K, whereon several weights, L, are placed, which are to beconnected with alarm signals by cords M, the signals to be located indifferent stations, as desired. The hook l is so shaped that when theweight drops and pulls down the arm 1), the hook I will escape from thecord K and let the shelf tall. The weight If] is also connected by acord, N, with the sliding bolt 0, that engages the btlance-wheel P ofalarm mechanisms, so that said weight disengages said wheel when itfalls, allowing the weight Q to revolve the pin-wheel 1t and actuate thebell-hammer S for sounding the alarm on the bell T. This alarm apparatusmay have special combinations of the pins U for indicating the districtfrom which the alarm is sounded by the order of thestrokes of the bell.

To prevent damage to the sprinkler by excessive pressure of the suddeninflow of the water when the cock is opened, said sprinkler has both anair-chamber, W, and a safetyvalve, V.

The yoke H is contrived with a downward bend at a and two more abruptbends at I), so that the weight will not slip off while bar 1 hangsnearly level, but allowing it to escape readily whenever either end ofthe bar falls by the burning of the cord. The contrivance ot' the yokeis represented more clearly in detail in Fig. 5.

In Fig. 2 the water-pipe A and sprinkler B are represented in suitableupright position for application to the well of an elevator, ventilator,or stairway, with the weight-suspending combustible cord J traversingthe sides of the well as best suited for that locality. There is also aweight, 1/, having a cord wound on a roller, 0, to beset in motion forsounding an alarm or operating any other signal. The weight E may be letfall, when the cord J burns off, upon a sliding gate, 0, in thewaterpipe A, as in Fig. 4; or a couple of weights E may be arranged tohold a valve,f, closed against the end of the water-pipe A where itopens into the sprinkler B, as in Fig. 3; and other methods of utilizingthe combustible cords may be employed. 1 prefer to treat the combustiblecords with substances making them more combustible; also, to make themexplosive for making them more certain and quicker in operation.

The arrangement of the cord-connections to the drop-shelt supportingbell-cranks is to be such between or within partitions and contiguous tofloors and other combustible woodwork, where the connections areconcealed in connecting the various apartments of a building, that suchconcealed portions may be of non-combustible material-such vas wire-toavoid rapid spread of a fire by its running along such concealedcombustible cords, it being intended that only so much of the cord asneeds to be exposed in the several apartments for giving the fire-alarmand starting the extinguishing apparatus shall be of.a combustiblenature.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent-- 1. In a fire-extinguisher, the combination,with a. water or gas supply pipe, A, and a stop work or valve, G, of thecock-lever D, the chain F, the weight E, suspended by its book G on theyoke H of the bar I, which is held up by the combustible cord J, andasuitable sprinkler, B, as shown and described. v

2. The combination, with the pipe A and stop-cock O, of the lever D,weight E, hook G, yoke H, bar I, cord J, and the perforated pipe orsprinkler B, extending about the room, as shown and described.

3. The combination, with the pipe A, stopcock 0, lever D, weight E-,cord J, and perforated pipe B, oftheair-chamber W at or near the end ofsaid pipe B, as shown and described.

.4. The combination, with the pipe A, stopcock O, lever D, Weight E,cord J, and perforated pipe B, of the safety-valve W near the end ofpipe B, as shown and described.

5. Thecombination,with thelever D, weight E, and combustible cord J, ofthe hook I, cord K, shelf J, and one or more weights, L, connccted witha fire-alarm, sothat the dropping of said weight L shall give thealarm,as shown and described.

6. The combination, with the weight E,hook G, yoke H, bar I, andcombustible cord J, of the cord- N and slide-bolt O, communicatingbetween the weight E and the stop-Wheel P of a fire-alarm, as shown anddescribed.

7. The combination, with the weight E, hook Gr, yoke H, bar I,combustible cord J, cord N, bolt 0, and stop-wheel P, of the spur-wheelR, provided with pins U, the weight Q, the trip-hammer and spring S, andthe bell T, as shown and described.

8. The combination of weight E, book G, yoke H, bar I, and combustiblecord J with the cock 0 and lover D of a water-supply pipe, substantiallyas described.

DANIEL PARHAM.

Witnesses CHAS. M. WILLrAMs, F. N. CHASE.

